1 files changed, 58 insertions, 0 deletions

diff --git a/include/linux/vm_err.h b/include/linux/vm_err.h
new file mode 100644
index 000000000..e8fcae8b6
--- /dev/null
+++ b/include/linux/vm_err.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (c) 2019 NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __VM_ERR_H_
+#define __VM_ERR_H_
+
+#if IS_ENABLED(CONFIG_TEGRA_VM_ERR_HANDLER)
+#include <linux/errinfo.h>
+
+struct vm_err_handlers {
+        /* return true, if error needs kernel to enter bad mode and reboot.
+         * return false, if error doesn't need reboot.
+         */
+        bool (*fn_self_async)(const struct errData *const err_data);
+        bool (*fn_self_sync)(const struct errData *const err_data);
+        bool (*fn_peer)(const struct errData *const err_data);
+};
+
+struct tegra_hv_config {
+        unsigned int guest_id_self;
+        unsigned int num_guests;
+};
+
+static const char * const fault_reason_desc[] = {
+        "Undefined",
+        "SMMU CB",
+        "SMMU Global",
+        "Bridge",
+        "Memory Controller",
+        "Instruction Abort",
+        "Data Abort",
+        "Other synchronous exception",
+};
+
+int tegra_hv_register_vm_err_hooks(struct vm_err_handlers *custom_handlers);
+void tegra_hv_get_config(struct tegra_hv_config *config);
+
+#else
+static inline int tegra_hv_register_vm_err_hooks(
+        struct vm_err_handlers *custom_handlers)
+{
+        pr_err("Can you please enable CONFIG_TEGRA_VM_ERR_HANDLER?");
+        return -EINVAL;
+}
+#endif
+
+#endif  /* __VM_ERR_H_ */